Mem. Soc. R. Sci. Liege, v. 8, pp. 435-445; Conference: International conference on astrophysics, Liege, Belgium, 9 Jul 1974; Other Information: Orig. Receipt Date: 30-JUN-76
Astrophys. Space Sci., v. 35, no. 1, pp. 117-135; Other Information: Orig. Receipt Date: 31-DEC-75; Bib. Info. Source: NL (Netherlands (sent to DOE from))